QPrintEngine Class Reference

The QPrintEngine class defines an interface for how QPrinter interacts with a given printing subsystem. Далее...

 #include <QPrintEngine>

Замечание: Все функции в этом классе реентерабельны.

Список всех членов, включая унаследованные

Открытые типы

enum	PrintEnginePropertyKey { PPK_CollateCopies, PPK_ColorMode, PPK_Creator, PPK_Duplex, ..., PPK_CustomBase }

Открытые функции

virtual	~QPrintEngine ()
virtual bool	abort () = 0
virtual int	metric ( QPaintDevice::PaintDeviceMetric id ) const = 0
virtual bool	newPage () = 0
virtual QPrinter::PrinterState	printerState () const = 0
virtual QVariant	property ( PrintEnginePropertyKey key ) const = 0
virtual void	setProperty ( PrintEnginePropertyKey key, const QVariant & value ) = 0

Подробное описание

The QPrintEngine class defines an interface for how QPrinter interacts with a given printing subsystem.

The common case when creating your own print engine is to derive from both QPaintEngine and QPrintEngine. Various properties of a print engine are given with property() and set with setProperty().

See also QPaintEngine.

Описание типов-членов

enum QPrintEngine::PrintEnginePropertyKey

This enum is used to communicate properties between the print engine and QPrinter. A property may or may not be supported by a given print engine.

Константа	Значение	Описание
`QPrintEngine::PPK_CollateCopies`	`0`	A boolean value indicating whether the printout should be collated or not.
`QPrintEngine::PPK_ColorMode`	`1`	Refers to QPrinter::ColorMode, either color or monochrome.
`QPrintEngine::PPK_Creator`	`2`	A string describing the document's creator.
`QPrintEngine::PPK_Duplex`	`21`	A boolean value indicating whether both sides of the printer paper should be used for the printout.
`QPrintEngine::PPK_DocumentName`	`3`	A string describing the document name in the spooler.
`QPrintEngine::PPK_FontEmbedding`	`19`	A boolean value indicating whether data for the document's fonts should be embedded in the data sent to the printer.
`QPrintEngine::PPK_FullPage`	`4`	A boolean describing if the printer should be full page or not.
`QPrintEngine::PPK_NumberOfCopies`	`5`	Устарело. An integer specifying the number of copies. Use PPK_CopyCount instead.
`QPrintEngine::PPK_Orientation`	`6`	Specifies a QPrinter::Orientation value.
`QPrintEngine::PPK_OutputFileName`	`7`	The output file name as a string. An empty file name indicates that the printer should not print to a file.
`QPrintEngine::PPK_PageOrder`	`8`	Specifies a QPrinter::PageOrder value.
`QPrintEngine::PPK_PageRect`	`9`	A QRect specifying the page rectangle
`QPrintEngine::PPK_PageSize`	`10`	Устарело. Use PPK_PaperSize instead.
`QPrintEngine::PPK_PaperRect`	`11`	A QRect specifying the paper rectangle.
`QPrintEngine::PPK_PaperSource`	`12`	Specifies a QPrinter::PaperSource value.
`QPrintEngine::PPK_PaperSources`	`22`	Specifies more than one QPrinter::PaperSource value.
`QPrintEngine::PPK_PaperSize`	`PPK_PageSize`	Specifies a QPrinter::PaperSize value.
`QPrintEngine::PPK_PrinterName`	`13`	A string specifying the name of the printer.
`QPrintEngine::PPK_PrinterProgram`	`14`	A string specifying the name of the printer program used for printing,
`QPrintEngine::PPK_Resolution`	`15`	An integer describing the dots per inch for this printer.
`QPrintEngine::PPK_SelectionOption`	`16`
`QPrintEngine::PPK_SupportedResolutions`	`17`	A list of integer QVariants describing the set of supported resolutions that the printer has.
`QPrintEngine::PPK_SuppressSystemPrintStatus`	`20`	Suppress the built-in dialog for showing printing progress. As of 4.1 this only has effect on Mac OS X where, by default, a status dialog is shown.
`QPrintEngine::PPK_WindowsPageSize`	`18`	An integer specifying a DM_PAPER entry on Windows.
`QPrintEngine::PPK_CustomPaperSize`	`23`	A QSizeF specifying a custom paper size in the QPrinter::Point unit.
`QPrintEngine::PPK_PageMargins`	`24`	A QList<QVariant> containing the left, top, right and bottom margin values.
`QPrintEngine::PPK_CopyCount`	`25`	An integer specifying the number of copies to print.
`QPrintEngine::PPK_SupportsMultipleCopies`	`26`	A boolean value indicating whether or not the printer supports printing multiple copies in one job.
`QPrintEngine::PPK_CustomBase`	`0xff00`	Basis for extension.

Описание функций-членов

QPrintEngine::~QPrintEngine () `[virtual]`

Destroys the print engine.

bool QPrintEngine::abort () `[pure virtual]`

Instructs the print engine to abort the printing process. Возвращает true в случае успеха; при неудаче возвращается false.

int QPrintEngine::metric ( QPaintDevice::PaintDeviceMetric id ) const `[pure virtual]`

Returns the metric for the given id.

bool QPrintEngine::newPage () `[pure virtual]`

Instructs the print engine to start a new page. Returns true if the printer was able to create the new page; otherwise returns false.

QPrinter::PrinterState QPrintEngine::printerState () const `[pure virtual]`

Returns the current state of the printer being used by the print engine.

QVariant QPrintEngine::property ( PrintEnginePropertyKey key ) const `[pure virtual]`

Returns the print engine's property specified by key.

See also setProperty().

void QPrintEngine::setProperty ( PrintEnginePropertyKey key, const QVariant & value ) `[pure virtual]`

Sets the print engine's property specified by key to the given value.

See also property().

Оглавление

QPrintEngine Class Reference

Открытые типы

Открытые функции

Подробное описание

Описание типов-членов

enum QPrintEngine::PrintEnginePropertyKey

Описание функций-членов

QPrintEngine::~QPrintEngine () [virtual]

bool QPrintEngine::abort () [pure virtual]

int QPrintEngine::metric ( QPaintDevice::PaintDeviceMetric id ) const [pure virtual]

bool QPrintEngine::newPage () [pure virtual]

QPrinter::PrinterState QPrintEngine::printerState () const [pure virtual]

QVariant QPrintEngine::property ( PrintEnginePropertyKey key ) const [pure virtual]

void QPrintEngine::setProperty ( PrintEnginePropertyKey key, const QVariant & value ) [pure virtual]